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La1-xSrxFeO3 perovskites as oxygen carriers for the partial oxidation of methane to syngas
Zhao, Kun1,2; He, Fang1; Huang, Zhen1; Zheng, Anqing1; Li, Haibin1; Zhao, Zengli1
2014-07-01
Source PublicationCHINESE JOURNAL OF CATALYSIS
Volume35Issue:7Pages:1196-1205
AbstractWe prepared perovskite-type oxides La1-xSrxFeO3 (x = 0, 0.3, 0.5, 0.9) by a combustion method and used these as oxygen carriers for the partial oxidation of methane. X-ray diffration, scanning electron microscopy and H-2 temperature-programmed reduction techniques were used to characterize the samples. Their reduction and oxidation activities were investigated using a thermogravimetric analysis reactor and fixed-bed reaction equipment, respectively. The results showed that the lattice oxygen in La1-xSrxFeO3 was suitable for the partial oxidation of methane to produce syngas. Their capacity to provide oxygen was enhanced by the partial substitution of La3+ by Sr2+ and the synthesized materials have good regenerability. The optimal degree of Sr substitution was found to be x = 0.3-0.5 for La1-xSrxFeO3 with regard to reactivity, selectivity, and oxygen-donating ability. CH4 conversion was higher than 70%, and the n(H-2)/n(CO) ratio remained about 2:1 and no obvious decomposition of CH4 occurred. (C) 2014, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordPerovskite Lattice Oxygen Thermogravimetric Redox Partial Oxidation Syngas
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/S1872-2067(14)60084-X
WOS Subject ExtendedChemistry ; Engineering
WOS KeywordCHEMICAL-LOOPING COMBUSTION ; SYNTHESIS GAS ; LATTICE OXYGEN ; BED REACTOR ; HYDROGEN ; OXIDES ; FE ; CU
Indexed BySCI
Language英语
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS IDWOS:000338913700027
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Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10771
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhao, Kun,He, Fang,Huang, Zhen,et al. La1-xSrxFeO3 perovskites as oxygen carriers for the partial oxidation of methane to syngas[J]. CHINESE JOURNAL OF CATALYSIS,2014,35(7):1196-1205.
APA Zhao, Kun,He, Fang,Huang, Zhen,Zheng, Anqing,Li, Haibin,&Zhao, Zengli.(2014).La1-xSrxFeO3 perovskites as oxygen carriers for the partial oxidation of methane to syngas.CHINESE JOURNAL OF CATALYSIS,35(7),1196-1205.
MLA Zhao, Kun,et al."La1-xSrxFeO3 perovskites as oxygen carriers for the partial oxidation of methane to syngas".CHINESE JOURNAL OF CATALYSIS 35.7(2014):1196-1205.
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